In 21st century, the sudden changing Information Technology which has an effect over Politics, Economy, Cultures, Science, Environment, Religion that makes us to look over the new mission prospect with the Internet which has the best advantage for mission instrument in the state of today. In this study, we consider for theological understanding of the Internet mission which appeared as a convenience of new facilities of civilization in the close arrival of an information-oriented era to our life, moreover, it suggested the effective scheme for the Internet mission via practical analysis of the main churches’ mission web-sites which have high rate to link. The Internet has the fertility of soil which like a open space, a tool for activation community, a province of God’s Creation and interconnection of a meeting. Thus, theological understanding of the Internet mission brings a new mission prospect about widely opened cyber space through the Internet. The Internet is a meeting field where has no restriction by time or place. Therefore there can be useful in fellowship, education and a consultation and it is strong tool for promotion to form religious community belongs to the way of practical use. At the present time, the Internet site which is operated by churches need innovational changing to be more effective internet mission not only for the church guidance or advertising which gathered all formal informations but also to be enterprising web page which has influence for mission. If there is one-way service like preaching in the web site of church, it needs to insert management of good interactive community section which originate ministers and congregation to get active relationship and homepage of church needs to be changed for a space of communication which is able to link among the church members or between ministers and the church members. Also, there is a requirement to make better web site to be more useful for mission and educational effect of Christianity through enriched link-service which improve the contact with all denominations in the way of the Church and connect to mission organizations, Christian community or a group of cooperation. Accordingly these shows assignments which must be handled by today’s Church through; noticing a flowing of knowledge information-oriented era that more rely on the Internet, identifying new commission of the times for the Internet mission and the whole effort for the Internet evangelism and mission which include growing the professional manpower with commission.